1. If the transmitted light is at maximum intensity when the two polarizers are
ID: 1513711 • Letter: 1
Question
1. If the transmitted light is at maximum intensity when the two polarizers are parallel, and minimum intensity when the two polarizers are perpendicular, what is the relationship of the intensity of transmitted light to the angle of the polarizers between 0 and 90 degrees?
2. Theoretically, what percentage of incident plane polarized light would be transmitted through three polarizers which each have their axes rotated 17 degrees from each other? Assume ideal polarizers and assume that the first polarizer's axis is 17 degrees from the axis of the second polarizer.
PLEASE ANSWER AND EXPLAIN BOTH PARTS AND SHOW WHAT IS THE FINAL ANSWER!!!
Explanation / Answer
intensity of light coming from 1st polarizer I1 = Io/2
intensity of light coming from 2nd polarizer I2 = I1*(costheta)^2
I2 = (I0/2)*(costheta)^2
+++++++++++
2)
I1 = Io/2
I2 = I1*(cos17)^2 = Io/2*(cos17)^2
I3 = I2*(cos17)^2 = I1*(cos17)^2*I1*(cos17)^2 = Io/2*(cos17)^4
I3 = Io*0.42
(I3-Io)/Io*100 = 32 % <<<-----------answer
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